Apparatus for refrigeration.



Patented Apr. 9, 1918.

INVENTORSV WITNESSES ATTORNEY r ICE.

JERRY BARRY AND ELOGE DION, 0F BLAINE LAKE, SASKATCHEWAN, CANADA.

APPARATUS FOR REFRIGERATION.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed October 12, 1916. Serial No. 125,285.

tion, of which the following is a specification. V

This invention has relation to refrigerators and has for its object to provide a refrigerator wherein the refrigerant employed is finely divided ice mixed with a suitable proportion of a saline substance having the property of further reducing the temperature of the mixture, whereby a lower-temperature may be secured in the refrigerator than would be possible by the use of ice alone, and whereby the low temperature of the "refrigerator may be maintained. for a longer period for the same quantity of ice employed, than in refrigerators of the types heretofore provided.

Another object of the invention is to provide an apparatus wherein a region of extremely low temperature. is maintained, below the freezing point of water for instance and a second region of refrigeration designed to be maintained at a higher temperature than the colder region forthe preservation of food studs, the temperature of the warmer region to bemaintained by the regu lated admission of air from the colder region as required. I

A still further object of the invention is to provide a refrigerator embodying the principle of refrigeration as set forth above with a novel arrangement of cooling chambers, air passagesanddrains, whereby the highest possible cooling efiiciency per unit quantity of refrigerant mployed can be of fected.

In addition to the foregoing, our invention comprehends improvements in the de tails of construction and arrangement of parts to be hereinafter more fully described and particularly set forth in the appended claims. 7 v

In the accompanying drawings in which ingparts are desigsimilar and correspon nated by the same characters of reference throughout the several views in which they appear Figure 1, is a vertical longitudinal section taken through a refrigerator embodying the principle of the present invention, and

Fig. 2, is a vertical transverse section taken on the line 2 2 thereof.

Fig. 3 is a fragmentary sectional view showing the air conduit.

With reference to the drawings, 1 and 2 indicate respectively the front and rear walls of a refrigerator, 3, the end walls, and 4 and 5 respectively the bottom and top walls. Each wall is formed of an inner panel section 6 and outer section 7 in spaced relation, withthe space therebetween filled with a suitable heat insulating material 8, such as saw dust, magnesia, etc. The refrigerator is provided interiorly with a vertical partition 9, formed in a manner similar to the Walls, of spaced panel sections filled with heat insulating material. In this manner, two chambers are provided, indicated at 10 and 11, communication between said chambers being established through the agency of openings 12 and 13 extending transversely through the partition 9, and located at the lower and upper portions thereof as indicated in the drawing.

The chamber 11, which for the sake of convenience may be termed the freezing chamber, is provided-with refrigerant tanks 14, spaced longitudinally as indicated in Fig. 1, each tank extending from the front to the rear of the chamber and provided at their top portions with filling hoppers 15 normally closed by plugs or the like 16. The refrigerant tanks may, in addition to. their primary function, serve to support the ends of horizontal shelves 17 upon which articles may be supported. The tanks are further connected by means of a pipe 18,

having communication at either end with the interior of the tanks at a point slightly above the bottoms thereof, one of the tanks 191 preferably extending through I the charm I her 10 to a point exteriorly of the refrigorator. The chamber 10 may also be provided with a number of shelves to support articles "and this chamber, for the sake of convenience, may be termed the refrigerating chamber.

The present invention further 7 GOI1t8111-,

of means for permitting from the outside wheredicated at. 23. The upper end of the conduit is in communication .with a horizontal channel 2% formed within the top wall 50f the refrigerator, said horizontal channel having communication with a transversely extending channel25' whicho'pens at its opposite end into the upper portion of the chamber 11, as indicated in Fig. 2. v

,7 Access to either chamber, may be had through the agency of doors 26 constructed of spaced panel sections filledwith heat insulating material in a manner similar to the walls of the refrigerator. r

I In use, each tank 14 is filled with a mixture of shaved iceand salt, in suitable proportions, through the filling hoppers 15, and the plugs16 replaced. This mixture, especially when the ice is finely divided, has the effect to quickly reduce the temperature within the chamber 11 t0. 32? F. or below, depending upon the proportion of tank surface to the volumeof the chamber. Articles of food placed upon the shelves within the chamber'will, in due course become frozen, and in this condition will remain wholesome for. an indefinite period. I i

In the case of food studs, required for immediate consumption or dispensing, and which must be retained at a low tempera- 'ture but not frozen, are kept in the chamber 10,; the temperature is maintained by removing theplugs from the'openings 12 and '13 to permit c rculation of cold air from the chamber 11, "the air taking a course through the openings12, through the chamber 10 in an upward direction, through the "opening .13, and into the chan'iber .11 in a downward direction, the air being thus hcooledafter having abstracted heat fromthe articles in the chamber 10. 7

If the openings 12 and 13 are permitted to i emain open, the chamber 10 willobviously be. reduced to the temperature of the chamber 11, j'lhis however .is not desirable, and

-whenthe.air in the chamber 10 has been reduced to. a temperature. of 359 F. or less which temperature 'willjbe sufficient to preservearticles of: food, the..openings 12 and 1.3 are again plugged, or one of the openings circulation interiorly of the refrigerator maintenance of a refrigerating temperature without freezing the articles. The relative temperatures of the freezing and preserving chambers may be determined by extending 1 hei-mometers the-reinto and the temperature of the preserving chamber may be thus 'inaintained-in a more positive manner.

4 The refrigerator described above embodies .asbsefore stated, a freezing and preserving chamber with means for regulating communication therebetween, but it will be obvious that the principle ofthe present invention may be embodied in a refrigerator consisting-of but a singlejchamb'er with one or more refrigerating tanks, placed therein. The design of therefrigerator may .befurther varied from that herein illustated by disposing" the chambers in superposed relati on withthe refrigerating tank in theupper chamber. Thus, the designof the refrigerator, the relation of the chambers, etc-., may be varied to suit the requirements of the purposeto which the refrigeratoris designed to be put. Refrigerating cars, industrial re 'frigerators, etc., as well as smaller refrigeratorsfor household use may be constructed embodying the principles hereinbefore given without departing from the spirit of the invention.

Therefore,,while .we have illustrated and described our invention with some degree of particularity, 'we realize that in practice various alterations may be made, and we therefore reserve therightan'd privilege of changing the form of the details of con struction, or-otherwise altering the arrangement of; the correlated parts without departing from the spiritof the invention or the scope of the appended claims. Having thus described our invention what we claim; as new and desire to secure by Letters Patent is g V 1 c y 1. In a refrigerator, a partition defining free ing and refrigerating chambers, r

frigerating means in the freezing chamber including a plurality of tanks adapted to contain a mixture of finely divided ice and salt, drain pipes for said tanks extending therefromatpcints vertically spaced from the bottoms thereof to the eXtBr Or f t e frigerator, an air conduit extending from the atmosphere to theupper portion of the freezing chamber, and means' for regulating circulation of air from one chamber to another whereby the temperature of the refrigerating chamber-may be. maintained at a. higher degree than the freezing chamber. 2. In arefrigerator, havingheat insulated walls, aheat insulated partition therein dey of air through said openings from one chamher to another, the Walls of the refrigerator having an air conduit formed therein extending from the atmosphere to the upper portion of the freezing chamber, and refrigerating means comprising longitudinally spaced tanks depending in the freezing chamber having filling openings whereby the tanks may be filled with a mixture of finely divided ice and salt, shelves supported between and upon the tanks, and drain pipes extended.

from the tanks at points vertically spaced from the bottoms thereof.

In testimony whereof, we affix our signatures in the presence of three witnesses.

JERRY BARRY. ELOGE DION.

Witnesses:

M. E. J onus WILLIAM MCDONALD, T. J. TREMBLAY.

Copies of this patent inay be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. O. 

